pls answer all and dont worry about explaination thank you.

WACC is the overall rate of return a firm must earn on its assets to maintain: O a. Its current credit rating, b. Its current cost of debt. Oc. Its current level of cash flows. Od. The value of its stock. Oe. The book value of its assets. The target capital structure is the debt-equity mix that: a. Maximizes the value of the firm. b. Minimizes the cost of equity financing. Oc. Maximizes the cost of capital. Od. Minimizes the cost of debt financing. Oe. Minimizes the overall debt level of a firm. The return that lenders require on their loaned funds to the firm is called the: O a. Current yield. Ob. Capital gains yield. Oc Coupon rate. d. Cost of debt. O e Cost of capital. A firm's overall cost of equity is unaffected by changes in the market risk premium. True False Which of the following is generally true about a firm's cost of debt? O a. It is equal to the yield to maturity on the firm's outstanding bonds. O b. It normally cannot be observed, directly or indirectly, in the marketplace. Oc. It is greater than the average coupon payments on outstanding debt. d. It is greater than the cost of equity. OeIt is equal to the coupon rate on the firm's outstanding bonds